Integrated 4-port 10/100Mbps adaptive Fast Ethernet switch port This article refers to the address: http:// Built-in TD-SCDMA wireless module to share high-speed connection of TD-SCDMA wireless network Virtual Private Network (VPN), which supports standards-based IPSec VPN services, supports data encapsulation, encryption, and authentication options including IPESP, DES, 3DES, AES, MD5, and SHA-1. Firewall security features such as stateful packet inspection (SPI) and denial of service (DoS) attack prevention, the SPI detects the contents of all incoming packets before deciding what packets are allowed to pass. The filter can be set to be based on the MAC address, IP address. Network Address Translation (NAT) and Port Address Translation (PAT), hiding internal IP addresses and expanding URL space Support for virtual servers and DMZ Remote and local upgrade firmware to provide firmware backup Provide multi-level connection detection: always online, dial on demand. Support DTU function Remote management, remote management through support OVDP management platform, industrial design, power terminals, rail mounting, 9-24VDC power supply, wide temperature, support for industrial fieldbus protocol MODBUS. Central side network architecture description The central end has a public network environment, and the outermost end is provided with a broadband VPN router (such as netscreen-25). Client network architecture description The client is mainly composed of a monitoring cloud platform and a monitoring terminal box. The video encoder and the Yinghantong 3G router are arranged in the monitoring terminal box. After the 3G router connects to the TD-SCDMA network through dial-up, it establishes a VPN connection with the VPN device of the monitoring center to provide data security protection for the wireless transmission. The video data of the user is encrypted by the encryption algorithm and transmitted in the protection of the VPN tunnel. Greatly guarantee the security of the data. 4, equipment selection 4.1 Central equipment selection The central network equipment is recommended to use Cisco or Juniper's VPN router or firewall, use ADSL or fiber access, and need to have a fixed public IP address. 4.2 Wireless communication equipment selection According to the working environment of the site, we use the form of terminal box to ensure that the equipment can operate safely and stably under the harsh environment. The video server and the 3G router supporting the TD-SCDMA network are arranged in the terminal box, and the 3G router supporting the TD-SCDMA network adopts the product of Beijing Yinghantong Network Technology Co., Ltd., and the model is InRouter600. The router uses standard Ethernet protocol for network routing, and uses standard VPN (Virtual Private Network) technology to complete secure interconnection of remote networks and realize machine-to-machine data communication based on standard TCP/IP protocol. Based on VPN technology, an encrypted tunnel can be established between different networks through the Internet to realize secure interconnection of remote networks and build a virtual private network.
Light for the part of a car that contains some of the controls used for driving and the devices for measuring speed , distance. The information on the dashboard is varied according to the original design of the vehicle. Dashboard lamp is a functional luminaries used to indicate the performance of a vehicle. dashboard lights, general instrument of the vehicle lamp has ABS lamp, led light for EPC, O/D block indicator, seatbelt light, battery indicator light, the oil lamp, led light for light oil, water temperature, engine indicator, hand brake lights, in the before and after the lights, turn signals, the fog lamp light, and vehicle failure indicator, etc.
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